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Security report for odido.nl

Odido · Telecommunications · Netherlands

Medium risk. 4 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

74/100

Risk levelMedium

0–100, higher is better. How it is calculated

Odido is a Dutch telecommunications provider offering mobile subscriptions, internet, TV, and fixed telephony services primarily targeting consumers in the Netherlands. The website presents a professional and consistent brand image with clear navigation and comprehensive service offerings. The technical infrastructure includes modern web technologies, analytics, and performance monitoring tools, indicating a mature digital presence. Security posture is solid with HTTPS enforced and cookie consent mechanisms in place, though explicit security policies and incident response contacts are not published. Overall, the website is trustworthy and compliant with GDPR, providing a good user experience and business credibility.

Scanned

NIS2 and GDPR posture

GDPR outside view
68/ 100 · Medium
Checks completed
7of 7

NIS2 Art. 21(2)

  1. (a) Risk analysis and security policies: Not visible from outside
  2. (b) Incident handling: One indicator
  3. (c) Business continuity, backups and crisis management: Not visible from outside
  4. (d) Supply chain security: Not visible from outside
  5. (e) Secure acquisition, development and maintenance, including vulnerability handling: Partly checked
  6. (f) Assessing the effectiveness of security measures: Not visible from outside
  7. (g) Cyber hygiene and security training: Not visible from outside
  8. (h) Cryptography and encryption: Partly checked
  9. (i) HR security, access control and asset management: One indicator
  10. (j) Multi-factor authentication and secured communications: Not visible from outside

This scan rated NIS2 with an earlier keyword method that is no longer shown; rescan for the per-article view. Risk management, continuity, supply chain, training, MFA, management oversight (Art. 20) and incident reporting (Art. 23) need internal evidence, and Guard cannot tell whether NIS2 applies to this organisation.

GDPR is indicative only, based on publicly visible signals: Articles 7, 12, 13 and 32 of Regulation (EU) 2016/679 and Article 5(3) of the ePrivacy Directive. Not a certification or legal assessment.

Priority findings

4 findings rated critical or high. Fix these first.

  1. Security headers

    Security headers are instructions your web server sends to every visitor’s browser. Missing ones leave visitors more exposed to attacks such as clickjacking and injected scripts.

    • High

      Missing Strict-Transport-Security header

      Forces HTTPS connections

      What to do: Add "Strict-Transport-Security: max-age=31536000; includeSubDomains; preload"

      • CWE-319
      • OWASP A04:2025
      • ASVS V3.4.1
    • High

      Missing X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

  2. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

  3. SSL/TLS

    TLS encrypts the connection and proves the site is really yours. Weak or expiring certificates trigger browser warnings and put traffic at risk.

    • High

      Weak Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1

Need hands-on remediation? Email guard@offseq.com

Keep watching odido.nl

This scan found 20 issues across 6 checks. Monitoring re-runs those checks daily, emails you when something material changes and records each fix, so you can show progress.

Daily monitoring

Recommended

€25per month

  • TLS certificates and expiry
  • DNS records
  • SPF, DKIM and DMARC
  • Security headers
  • GDPR and NIS2 posture
  • Exposed services
  • Third-party trackers
  • Security score drift

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Results by check

Each check with its score, findings and the evidence it collected.

How this score is calculated

The security score runs 0–100, higher is better. It is the plain average of the security checks that completed in this scan, each counted equally. A check that could not run is left out: it counts neither as a pass nor as a fail.

Counted in this score

SSL/TLS
77
Security headers
30
Email security
85
DNS health
85
Network security
100
GDPR outside view
68
Average
74

Not counted

  • NIS2 outside view: Re-weights evidence from the TLS, email, DNS, network and hygiene checks, so counting it would count that evidence twice. Shown on its own.
  • OffSeq Observations: An AI reading of the site, useful context but not reproducible evidence. Shown on its own.

Findings that cap the score at 49

Each of these is serious on its own, so while any is present the site cannot rate better than high risk, however good the other checks are.

  • The certificate is not trusted by browsers
  • The website is not served over HTTPS
  • A database, remote desktop, file-sharing or Telnet service is reachable from the internet
  • The page loads a script from a compromised source
  • The domain registration has expired
  • SPF authorises every server to send mail as the domain

Partial scans

When the site blocks Guard or most checks cannot run, the score covers only the checks that ran (usually DNS and email), is capped at 75 and is shown as partial, without a risk level.

Risk levels

  • Critical0–25
  • High26–49
  • Medium50–75
  • Low76–100

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

Odido operates in the competitive Dutch telecommunications market, providing bundled services and device sales through an online platform. The business model focuses on direct consumer sales with value-added offers such as combined internet and mobile packages. The company leverages partnerships for accessory sales and uses multiple marketing and analytics tools to optimize customer engagement. The absence of direct contact emails or phone numbers suggests a preference for digital customer service channels. The brand maintains a consistent and professional online presence, supporting its market position as a reliable telecom provider.

Security posture

The website enforces HTTPS and implements cookie consent compliant with GDPR, reflecting a good baseline security posture. Use of security headers is partial, and no explicit security or incident response policies are published, which could be improved. Third-party scripts and analytics are used extensively but appear managed with consent. No vulnerabilities or exposed sensitive data were detected in the HTML content. The lack of a security.txt or vulnerability disclosure page is a gap in transparency and incident management readiness. Overall, security practices are adequate but could benefit from enhanced documentation and additional headers.

Recommendations

  1. Publish a dedicated security policy and incident response contact information.
  2. Implement a security.txt file to facilitate vulnerability disclosures.
  3. Enhance HTTP security headers, including Content-Security-Policy and Strict-Transport-Security.
  4. Improve accessibility features to meet higher standards.
  5. Regularly review and audit third-party scripts for security and privacy compliance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Odido
Description
Odido is a Dutch telecommunications provider offering mobile subscriptions, internet, TV, and fixed telephony services. Customers can order mobile subscriptions online and customize their own packages.
Key services
Mobile subscriptions, Internet services (including fiber), TV subscriptions, Fixed telephony, Device sales (phones, tablets, smartwatches)
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, Google Tag Manager, Siteimprove Analytics, New Relic monitoring, Unity Stack components, CSS3, HTML5
Frameworks
Unity (custom components)
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism
  • No exposed sensitive data in HTML
  • Use of security meta tags

Analytics and tracking

Services
Google Analytics, Siteimprove Analytics, New Relic
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Dwin1
Tracking pixels
Siteimprove Analytics, Visual Website Optimizer, BlueConic
Marketing tools
Siteimprove Analytics, Visual Website Optimizer, BlueConic
Transparency
good

Site quality

Design
good
User experience
good
Content relevance
good
Navigation
good
Professionalism
good
Trustworthiness
high

Key observations

  1. Website is professionally designed and well-structured.
  2. Comprehensive cookie consent and privacy policy in place.
  3. Multiple analytics and marketing tools integrated with consent.
  4. No direct contact emails or phone numbers found; contact primarily via forms.
  5. No explicit security or incident response policies published.
  6. No security.txt or vulnerability disclosure page detected.
  7. Use of modern web technologies and performance monitoring.
  8. No adult or questionable content detected.
  9. WHOIS data consistent with business claims.
Technical notes

Notes

The website uses a modern tech stack including JavaScript frameworks, Google Tag Manager, Siteimprove Analytics, and New Relic for monitoring. The CMS is identified as CmsA. Performance is moderate with good mobile optimization and SEO practices. The site uses preconnect and preload hints for resource optimization. Some custom Unity Stack components are used for UI. No hosting provider details were found. The site is well-structured with valid meta tags and responsive design, though accessibility could be improved. Overall, the technical implementation supports a professional and scalable online presence.
Standards and sources

Reference chips under each finding point to the standard, regulation or specification the finding relates to. They are taken from the official datasets below and mapped conservatively: a finding with no defensible link shows none. NIS2 and GDPR references mark where a finding is relevant evidence, not a compliance verdict. Implementing Regulation (EU) 2024/2690 binds digital infrastructure and digital service providers; for other entities it is the most detailed public reading of the Article 21 measures. WCAG, EN 301 549, European Accessibility Act and Web Accessibility Directive references name the requirement an automated accessibility rule relates to; they are not a conformance verdict.

Retrieved 2026-10-25

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